Crop and Soil Nitrogen Dynamics in Annual Strawberry Production in California

Bottoms, Thomas G.; Hartz, T.K.; Cahn, Michael; Farrara, Barry

doi:10.21273/hortsci.48.8.1034

Cited by 9 publications

(8 citation statements)

References 18 publications

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“…Based on weight loss from mesh bags, considerable PCU remained (5%-25%) at the end of the cabbage growing season, which was similar to other results (Bottoms et al 2013). In contrast, other researchers have reported almost complete N release (i.e., ≥98%) within the crop growing season (Wilson et al 2009b;Carson et al 2014a;Bierman et al 2015).…”

Section: Discussionsupporting

confidence: 87%

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Comparing soluble to controlled-release nitrogen fertilizers: storage cabbage yield, profit margins, and N use efficiency

et al. 2018

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Optimizing N fertilizer applications involves maximizing N use efficiency (NUE) while minimizing losses but depends on complex interactions of crop, soil, weather, and management practices. One approach may be to use controlled-release fertilizer that synchronizes N availability with plant demand. A field experiment at two Ontario locations from 2007 to 2009 compared split-applied ammonium nitrate (ANs) to preplant-applied poly-coated urea (PCU) and soluble N at a ratio of 75:25 at five N rates on late-season storage cabbage (Brassica oleracea L. var. capitata). Maximum yield and profit margins were obtained at an average of 286 and >300 kg N ha−1, but few differences among sources were observed. Compared with ANs, PCU did not affect plant N content, nor did PCU reduce soil nitrate or NUE, which indicates little differences in risk of environmental N losses between N sources. Dissolution from mesh bags indicated 5%–25% of various PCU formulations remained by harvest but 5%–10% remained by spring, which suggests conservation over the winter, a need to synchronize N release with crop uptake, and partially explains the lack of treatment differences. From agronomic, economic, and environmental perspectives, the tested PCU treatments for cabbage production in a humid, temperate climate were equivalent to the standard practice.

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Section: Discussionsupporting

confidence: 87%

“…Although N release of CRF applied in the fall for subsequent crop uptake has been evaluated (Carson et al 2014b;Bottoms et al 2013), we are the first to characterize N release over winter by leaving the mesh bags in the field after crop harvest. The lack of difference between fall and spring CRF weights suggests minimal N losses over winter.…”

Section: Discussionmentioning

confidence: 99%

Comparing soluble to controlled-release nitrogen fertilizers: storage cabbage yield, profit margins, and N use efficiency

et al. 2018

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“…The calculated uptake of N by the plant and crop was close to the amount of fertiliser that was applied in 2015 (117 kg N/ha), suggesting that the crop was not over-fertilised. This value is much lower than that found in strawberry fields in California (225 kg N per ha), where yields are higher and the production season is longer than in Queensland [37]. However, the analysis in the present study did not take into account reallocation of N from the leaves, crown, and roots to the fruit or the N that accumulated in the flowers.…”

Section: Discussioncontrasting

confidence: 71%

Changes in the Concentration of Leaf Nitrogen over the Season Affect the Diagnosis of Deficiency or Sufficiency in Strawberries in the Subtropics

Menzel

2018

Agriculture

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Optimum leaf nitrogen (N) concentrations have been identified for strawberry (Fragaria ×ananassa Duch.) in temperate and Mediterranean areas, but whether these values are appropriate for the subtropics is unclear. Two experiments were conducted for 2 years to determine if the seasonal changes in the concentration of leaf N affect the diagnosis of deficiency or sufficiency of strawberry plants in Queensland, Australia. In 2014, ‘Festival’, ‘Fortuna’, and ‘Winter Dawn’ were planted in early April and grown with and without N for the entire season. Then, ‘Festival’ was planted the following year in mid- or late April and, again, was grown with and without N. Yield was slightly lower with N in 2014, but higher with it the following year, particularly in the early planting. The concentration of total N in young, fully expanded leaves decreased from 3.0% to 2.0% as leaf, crown, and root dry weight increased, while the concentration of nitrate-N (NO3-N) decreased from 1200–3200 to 50–500 mg/kg. These changes in leaf N were large enough to affect the diagnosis of N deficiency or sufficiency. The concentration of leaf N was less variable than the concentration of leaf NO3-N and, therefore, better for estimating the nutrient status of strawberry plants in the subtropics.

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“…Atasay and Türemiş [2008] reported that the nitrogen content of the dry matter of fruit was 1.07-1.39% in the first year and 0.93-1.39% in the second year. Bottoms et al [2013] reported that amounts of nitrogen in the dry material of fruits ranged between 1.2% and 1.5%, while Tagliavini et al [1996] reported the amount of nitrogen taken up by the fruits of the 'Bounty' cultivar as 414g 100 kg fresh fruit -1 . Amounts of phosphorus taken up by strawberry fruits have been reported as 19 g 100 kg fresh weight -1 [Hemphill and Martin 1992] and 21 g 100 kg fresh weight -1 [Erenoğlu et al 1999].…”

Section: Plant Nutrient Elements Taken Up By the Fruitmentioning

confidence: 99%

Comparison of nutrient uptake by strawberry (Fragaria x ananassa Duch.) varieties according to phenological stages

Bayram

Elmacı

2021

asphc

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The purpose of this study was to determine the amounts of nutrient elements taken up from the soil to the roots, stems and leaves, in five different growing periods and to the fruits in the harvesting period, in two different strawberry cultivars. For this purpose, ten plantations were selected for each cultivar. The roots, stems and leaves were separated and the amounts of nutrient elements taken up by each part was determined according to the development period. In this study, which was conducted over two years, the physico-chemical characteristics of the soils of the plantations from which the samples taken were determined. In both cultivars, the largest amounts of the macronutrients nitrogen, phosphorus, calcium and magnesium and of the micronutrient manganese were taken up at all phenological stages by the leaves, followed by the roots and stems. The amounts of potassium that taken up were as follows in the order of most to least: at the beginning and in the harvest period, leaves, stems and roots; in other periods, leaves, roots and stems. For the nutrient elements iron, copper and zinc, this comparison showed variation between parts of the plants according to year, variety and period. In general, statistically significant correlations were found between the nutrient elements taken up at different periods by different parts of the plant of different varieties in both years. Significant differences were shown among the years in the amounts of N, P, K, Ca and Mg taken up by the fruits of the Camarosa variety, and of Fe only by the Festival variety.

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Crop and Soil Nitrogen Dynamics in Annual Strawberry Production in California

Cited by 9 publications

References 18 publications

Comparing soluble to controlled-release nitrogen fertilizers: storage cabbage yield, profit margins, and N use efficiency

Comparing soluble to controlled-release nitrogen fertilizers: storage cabbage yield, profit margins, and N use efficiency

Changes in the Concentration of Leaf Nitrogen over the Season Affect the Diagnosis of Deficiency or Sufficiency in Strawberries in the Subtropics

Comparison of nutrient uptake by strawberry (Fragaria x ananassa Duch.) varieties according to phenological stages

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